Draft-rigging



P. BROWN, DEC'D.

M. 1- BROWN, EXECUTRIX.

DRAFT RIGGING. APPLICATION FILED AUG.5. 1915.

1,344,981. PatentedJune29,1920.

3 SHEETS-SHEET I.

wi/bneoo P. BROWN, DECD.

M. 1. BROWN, EXECUTRIX.

v DRAFT RIGGING. APPLICATION FILED Aueh s. 1915.

Patented June 29, 1920.

3 SHEETS-SHEET 2.

APPLICATION FILED AUG-5. I915. 1,344,981.

UNITED STATES PATENT OFFICE.

PERRY BROWN, OF OORAOPOLIS,'PENNSYLVANIA MARGARET J. BROWN EXECUTRIX OF SAID PERRY BROWN, DECEASED.

To all whom it may concern:

Be it known that I, PERRY BROWN, a citizen of the United States, and a resident of Coraopolis, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Draft- Rigging, of which the following is a specifiv cation.

This invention relates to improvements in draft rigging for cars. The object of the invention is to provide a simple rigging capable ,of receiving heavy shocks and one which is so simple that it can be, made at a minimum cost and assembled with little trouble and at the same time can be readily repaired.

The invention consists in the construction and arrangement of parts hereinafter more fully described and then definitely claimed.

In the drawings accompanying and forming part hereof: e

Figure 1 is a view, mostly in horizontal section, showing my invention.

Fig. 2 is a perspective view of one of the parts.

Fig. 3 is a vertical central section through the line 33 of Fig. 1.

Fig. 4 shows two of tive view. Fig. 5 is a transverse section through the line 55 of Fig. 1.

Figs. 6 and 7 are perspective views of the followers.

Fig. 8 is a top plan view of a modified fornr of side bar.

teferring now drawings by numerals: 1 and 2 designate a pair of draft irons which are preferably formed with pockets between two sets. of abutments 3 and 4, the rear abutinents 4 projecting much farther than the forward abutments 3 for a purpose to be hereinafter described. Two side plates 8 and 10, which are preferably castings, are secured on opposite sides of the shank 12 of the draw bar by means of two bars 14 and 16, the bar 14 being immediately in front of the upper shoulder or rib 18 of the drawbar shank and the lower bar 16 being immediately in front of the lower shoulder or rib 20 of said shank. The upper bar 14 has its ends inserted in openings 22 formed in the aforesaid plates 8 and 10 (see Fig. 4). Under the openings 22 of the plates 8 and 10 are openings 24 which are preferably dove-tail the parts in perspec- DRAFT-RIGGING.

to the details of the,

' Patented June 29, 1920.

Application filed August 5, 1915. a Serial No. 43,882.

in shape'and the ends of the lower bar 16 alsohave dove-tail ends which fit the dovetail openings 24 and thus hold the plates-8 and 10 in proper position and prevent them from spreading. After the upper bar 14 has had its-ends inserted in the recesses 22 in the side plates 8 and 10, and the draw bar shank is placed between said plates 8 and 10, the dove-tail ends of the lower bar 16 are slipped through the. passages 26 in the plates 8 and 10 and into the dove-tail openings 24 before referred to. After the dove-tail ends of the plate 16 are in position, a looking plate 30 is slipped in the passage 26 under the aforesaid bar 16 whereby the dove-tailplate 16 is prevented from dropping out of position. Thus the side plates 8 and 10 are located on the sides of the draw bar with the shoulders or ribs 18 and 20 of the shank normally abutting against the horizontal bars 14 and. 16, as clearly seen in Fig. 3. The exterior of each of these plates 8 and 10 is formed witha vertical recess 32 shown in dotted lines in Fig. 8 and with a horizontal recess 34 entering said vertical recess. These recesses are for the purpose of receiving the vertical rib 38 and a horizontally projecting lug 40 on side bars 42 and 44, one of these side bars being shown in perspective view in Fig.4. When the two side bars 42 and 44 are in position they are located as shown in Fig. 1 andproject rearwardly on opposite sides of the shank as shown in said Fig. 1. These side bars are rather narrow and are designed to project through openings 50 in a forward follower 52 and also through openin s 54 in a rear follower 56, these followers eing shown assembled in Fig. 1 and in perspective view in Figs. 6 and 7. Each follower is formed with two recesses and 62, the recesses 60 being immediately over the recesses 62 and the recesses 60 and 62 of the forward follower being in alinement with the recesses 6O and62 of the rear follower so that these recesses form housings for the two sets of springs 64 and 66, as clearly seen in Fig. 3. The rear end of the aforesaid side bars 42 and 44 have hook-shaped ends 7 0 which are adapted to hook over angular projections 74 of the rear follower as shown in Fig. 1. The rear abutments 42 of the draft irons, which were hereinbefore referred to as extending farther inward than the front abutments 3, are in position to receive the thrust, on an impact, from the rear follower 56. Owing to the fact that the hook-shaped ends 70 of the side bars 42 abut against the abutments 4 of the draft irons, the side bars have no rearward mvement as shown in Fig. 1, but on a pull the side bars draw the rear follower forward, compressing the springs against the front follower, the side bars sliding in the openings in the forward follower 52. I deem this structure of importance, for on an impact the side bars sustain no load whatever as all of the thrust is transmitted directly which passes through slots in the draft irons and is supported by said draft irons. This horizontal bar 82 thus acts to support the entire rigging and, moreover, as the overhanging bracket 80 has a projecting part 84 abutting against thehorizontal bar 82, thishorizontal bar also sustains part of the blow on an impact.

In operation: On an impact, the draw bar 12 is thrust backward against the front follower 52, the shank of the draw bar moving between the horizontal bars 14 and 16, and

said bars 14 and 16 and the side platesS and 10 as well as the side bars 42 receiving no rearward movement. The thrust which is given to the rear follower directly by the shank of the draw bar is transmitted to the two sets of springs 64 and 66 and the rear follower 56, the latter being sustained by the wide abutments 4 of the draft irons and by the horizontal bar 82. On a pull, the side plates 8 and 10 and the side bars 42 come into play, the shoulders 18 and 20 on the shank of the draw bar abutting against the horizontal bars 14 and 16, thus drawing said bars and the side plates 8 and 10 forward, said plates 8 and 10 also drawing the side bars 42 forward and as the latter pass through the followers and are hooked onto the rear follower, said rear follower necessarily is drawn forward to compress the two sets of springs 64 and 66 against the front follower 52 which is held from forward movement by means of the front abutments 3 of the draft irons. It will thus be seen that the side plates Sand 10 and the side bars 42-42 receive absolutely no load on an impact and therefore there can be-no pos sibility of buckling the side plates 42. In fact, the only strain on these side plates is on a pull, and even'if there were then any tendency to buckle, such tendency would be restrained by reason of the said -plates passing through the slots in the followers 5256. In Fig. 1 I have shown the side'plates 8 and 10 made separate from the side bars 42- I much prefer this construction for then the 7 From the foregoing description and. ac-

companying drawings, it will beseen' that I have invented-an exceedingly'simple form of draft rigging which can'be readily assembled and as readily knocked down in the event of the parts being broken and that t r the parts are so constructed that there is no chance of buckling of the side bars.

It is obvious that changes and modifications may be made in the form and construction of my rigging and reference should therefore be made to the appended claims to determine the scope of my invention.

What I claim as my invention is:

1. In draft rigging and in combination with the draw bar shank, a pair of side plates, horizontal plates on opposite sides of said draw'bar shank connecting said side plates, a pair of side bars connected with said side plates and followers connecting with said side plates'and said draw bar shank, the rear follower being connected with said side bars and the front follower receiving the impact from said draw bar shank. 1

2. In draft rigging and in combination with the draw bar shank, a pair of plates on opposite. sides of said shank having recesses therein, a pair of ifollowers,'a pair of side bars having projections entering the recesses in said side plates and having hookshaped ends connecting with the rear follower. v

In testimony whereof I affix my signature in presence of two witnesses.

PERRY BROWN.

Witnesses:

J OHN L. FLETCHER, THOMAS E. ROBERTSON. 

